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[PATCH] s390: cpu timer reset in machine check handler

Fix wrong move direction of timer values for cpu accounting in case of a
machine check that indicates a broken cpu timer.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Heiko Carstens 20 vuotta sitten
vanhempi
commit
8ffa7405af
2 muutettua tiedostoa jossa 6 lisäystä ja 6 poistoa
  1. 3 3
      arch/s390/kernel/entry.S
  2. 3 3
      arch/s390/kernel/entry64.S

+ 3 - 3
arch/s390/kernel/entry.S

@@ -690,9 +690,9 @@ mcck_int_handler:
 	bo	BASED(0f)
 	spt	__LC_LAST_UPDATE_TIMER	# revalidate cpu timer
 #ifdef CONFIG_VIRT_CPU_ACCOUNTING
-	mvc	__LC_LAST_UPDATE_TIMER(8),__LC_ASYNC_ENTER_TIMER
-	mvc	__LC_LAST_UPDATE_TIMER(8),__LC_SYNC_ENTER_TIMER
-	mvc	__LC_LAST_UPDATE_TIMER(8),__LC_EXIT_TIMER
+	mvc	__LC_ASYNC_ENTER_TIMER(8),__LC_LAST_UPDATE_TIMER
+	mvc	__LC_SYNC_ENTER_TIMER(8),__LC_LAST_UPDATE_TIMER
+	mvc	__LC_EXIT_TIMER(8),__LC_LAST_UPDATE_TIMER
 0:	tm	__LC_MCCK_CODE+2,0x08   # mwp of old psw valid?
 	bno	BASED(mcck_no_vtime)	# no -> skip cleanup critical
 	tm	__LC_MCK_OLD_PSW+1,0x01 # interrupting from user ?

+ 3 - 3
arch/s390/kernel/entry64.S

@@ -727,9 +727,9 @@ mcck_int_handler:
 	jo	0f
 	spt	__LC_LAST_UPDATE_TIMER
 #ifdef CONFIG_VIRT_CPU_ACCOUNTING
-	mvc	__LC_LAST_UPDATE_TIMER(8),__LC_ASYNC_ENTER_TIMER
-	mvc	__LC_LAST_UPDATE_TIMER(8),__LC_SYNC_ENTER_TIMER
-	mvc	__LC_LAST_UPDATE_TIMER(8),__LC_EXIT_TIMER
+	mvc	__LC_ASYNC_ENTER_TIMER(8),__LC_LAST_UPDATE_TIMER
+	mvc	__LC_SYNC_ENTER_TIMER(8),__LC_LAST_UPDATE_TIMER
+	mvc	__LC_EXIT_TIMER(8),__LC_LAST_UPDATE_TIMER
 0:	tm	__LC_MCCK_CODE+2,0x08	# mwp of old psw valid?
 	jno	mcck_no_vtime		# no -> no timer update
 	tm      __LC_MCK_OLD_PSW+1,0x01 # interrupting from user ?